CVE-2026-53061: dm cache: fix dirty mapping checking in passthrough mode switching
dm cache: fix dirty mapping checking in passthrough mode switching
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.143.1-1 - Upgrade
Upgrade
Linux kernel dm-cacheto a version that resolves this vulnerability.Patch dm cache: fix dirty mapping checking in passthrough mode switching - Remove
Remove
dm_cache_metadata_all_cleanfrom your environment.Remove the unused function dm_cache_metadata_all_clean.
- Configuration
When creating the writeback cache target, ensure migration_threshold is set to "0" (as in the table example) and apply the fix so dirty mapping checks are performed in the preresume phase during passthrough switching.
Device-mapper cache target (dm-cache) migration_threshold = 0
Event History
Frequently Asked Questions
What is the severity of CVE-2026-53061?
The severity of CVE-2026-53061 is medium, with a score of 5.5.
How do I fix CVE-2026-53061?
To fix CVE-2026-53061, update your Linux kernel to the patched version that addresses this vulnerability.
What are the potential impacts of CVE-2026-53061?
CVE-2026-53061 could lead to data integrity issues due to improper dirty mapping checks in passthrough mode.
Which software is affected by CVE-2026-53061?
CVE-2026-53061 affects the Linux kernel and variants maintained by The Linux Foundation and Microsoft.
When was CVE-2026-53061 published?
CVE-2026-53061 was published on June 24, 2026.